KEY TO THE FAMILIES 3K 



10. Calyx and corolla similar, mere or less united; 

 stamens somewhat adnate to the perianth. 



22. Pontederiaceae (p. 141) 

 7. Ovary inferior ;, plants with large fleshy fruits, and elon-' 



gated, spiny-toothed leaves 20. Bromeliaceae (p. 136) 



6. Endosperm fleshy, cartilaginous, or bony. 



7. Ovary.and fruit superior... 23. lAliaceae (p. 141) 



7. Ovary and fruit inferior or partly so. 

 8. Stamens 6. 



9. Ovary 3-celled; leaves simple, entire. 



10. Erect herbs with parallel veined leaves and perfect 



flowers -24. Amaryllidaceae (p.' 145) 



10. Twining or climbing vines, often spiny, with uni- 

 sexual flowers and netted veined leaves. 



26. Dioscoreaceae (p. 151) 

 9. Ovary 1-celled; leaves netted-veined, compound or 



palmately lobed 25. Taccaceae (p. 150) 



8. Stamens 3; leaves narrow, often equitant. 



27. Iridaceae (p. 152) 

 5. Flowers very irregular; terrestrial plants. 



6. Fruit flashy, indehiscent, or capsular and with small to 

 medium sized seeds. 



7. Fertile stamens 5..... 28. Mttaaceae (p. 153 



7. Fertile stamen 1. -^ 



8, Anther 2-celled; calyx tubular or spathe-like. 



29. Zingiberaceae (p. 155) 

 8. Anther 1-celled,. borne on the margin of a petaMike 

 filament; calyx of free sepals. 

 9. Ovules many; flowers showy, bright-colored, large. 



30. Cannaceae (p. 160) 

 9. Ovules solitary; flowers mostly small, white. 



31. Marantaceae (p. 163) 

 6. Fruit capsular; seeds very minute, almost dust-like; epiphsrtic 

 ' or terrestrial plants, sometimes saprophytic. 



32. Orchidaceae (p. 164) 



(^ CleiSi - B. Dicotyledoneae 



1. Corolla none, or the perianth-segments all alike, or the perianth entirely 



wanting 1. Apetalae 



(/ncomptetoe) 

 1. Calyx' and corolla both present, the, corolla of distinct and separate 



petals \ .■: 2. Ghoripetalae (p. 37) 



{Polypetalae,) 

 1. Calyx and corolla both present, the petals more or less united. 



3. Oamopetalae (p. 42) 

 (Sympe(a/o€) 



